安装node yarn

yum update
yum install -y nodejs
yum install -y npm
npm install -g yarn
#设置镜像
yarn config set registry https://registry.npm.taobao.org --global
yarn config set disturl https://npm.taobao.org/dist --global
yarn config set sass_binary_site http://cdn.npm.taobao.org/dist/node-sass --global

# 升级node
npm install -g n
n install v14.16.0